I had a similar question while doing connection pooling with Oracle 8i of.....

        OK, if I set my connection pool to 10, why do I only see a 1 connection 
in Oracle

Well, the answer was that when you create a pool of 10, it only starts out with 
1 connection, NOT 10

If the connection pool starts needing more than 1 connection, it will create 
and *keep* new connections.
Oracle's connection pooling jar was smart enough to do it.

I opened up 4 web browsers and hit my web based app like crazy and saw the 
acutal physical connections in Oracle jump up to like 5 and stayed at 5 
connections.

I assume it is the same in MySQL






>-----Original Message-----
>From: KEREM ERKAN [mailto:[EMAIL PROTECTED]
>Sent: Friday, September 23, 2005 2:50 AM
>To: 'Tomcat Users List'
>Subject: RE: db-connectin is working fine, but is it pooling?
>
>
>Write a test connection page and stress test it with a lot of virtual
>clients. That way, you will have more than 1 connection opened 
>to ypur pool.
>
>
>> -----Original Message-----
>> From: Trond Hersløv [mailto:[EMAIL PROTECTED] 
>> Sent: Friday, September 23, 2005 3:24 AM
>> To: Tomcat Users List
>> Subject: RE: db-connectin is working fine, but is it pooling?
>> 
>> Thanks, I'll do that, but still - how can I be sure that my 
>> pool have more than just this one connection. Writing two 
>> servlets with endless loops, avoiding checking the 
>> connections back would give me the answer I guess.
>> But why is there only one connection established to my DB server??
>> 
>> Is there a way to configure the pool to pre generate eg. 10 
>> connections?
>> 
>> \trond
>> 
>> 
>> -----Original Message-----
>> From: Kyle [mailto:[EMAIL PROTECTED]
>> Sent: 23. september 2005 02:14
>> To: Tomcat Users List
>> Subject: Re: db-connectin is working fine, but is it pooling?
>> 
>> Print out your Connection Object .toString() to stdout or on 
>> a page and you should see that it is a Pool(ed|able) 
>> Connection object.
>> 
>> K
>> 
>> Trond Hersløv wrote:
>> 
>> >Everything works just fine, but I'm a little bit concerned 
>> that maybe I am generating a singel connection to the DB and 
>> not a pool of connections.
>> >As I run  netstat -a on the machine hosting the DB, I 
>> expected to find 
>> >a lot of connections to port 3306, which my MySQL server 
>> listens to, but there is only one single connection. Even 
>> when I press F5 for a long time to refresh my IE window like 
>> a 100 times or with more windows open at the same time there 
>> is just this one connection to be found.
>> >  
>> >
>> 
>> 
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